Gymnosperms Test 3

Total Questions:50 Total Time: 75 Min

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Questions 1 of 50

Question:Most gymnosperms are

Answers Choices:

Xerophytic

Hydrophytic

Halophytic

Epiphytic

Questions 2 of 50

Question:Primary development of male and female gametophytes takes place in the sporangia itself in

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Selaginella

Fern

Pinus

Both (1) and (2)

Questions 3 of 50

Question:Gymnosperms are called naked seed plants because these lack

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Cotyledon

Endosperm

Ovary wall

Testa

Questions 4 of 50

Question:Canada balsam is an oleoresin obtained from

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Abies balsamea

Impatiens balsamia

Pinus sp.

Helianthus annus

Questions 5 of 50

Question:The lateral conduction in gymnospermic leaf is by

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Veins

Xylem parenchyma

Transfusion tissue

Medullary rays

Questions 6 of 50

Question:Gymnosperms originated in

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Coenozoic

Palaeozoic

Pre-cambrian

Mesozoic

Questions 7 of 50

Question:The ovules are naked in

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Angiosperm

Gymnospermae

Monocotyledons

Victotyledone

Questions 8 of 50

Question:Which of the following gymnosperm is a bushy trailing shrub

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Ephedra

Cycas

Pinus

Araucaria

Cedms

Questions 9 of 50

Question:In gymnosperms, the pollen chamber represents

Answers Choices:

A cell in the pollen grain in which the sperms are formed

A cavity in the ovule in which pollen grains are stored after pollination

An opening in the megagametophyte through which the pollen tube approaches the egg

The microsporangium in which pollen grains develop

Questions 10 of 50

Question:Antheridia and archegonia are most reduced in

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Bryophyta

Selaginella

Ferns

Pinus

Questions 11 of 50

Question:Needle like foliage leaves are found in

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Mosses

Selaginella

Fern

Pinus

Questions 12 of 50

Question:Meroblastic type of embryo development takes place in

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Ferns

Selaginella

Pinus

All the above

Questions 13 of 50

Question:Male prothallus (gametophyte) in Pinus is having

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1 prothallial cell

2 prothallial cells

4 prothallial cells

A mass of cells

Questions 14 of 50

Question:Among the following which does not belong to sporophytic generation in Pinus

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Roots

Endosperm

Dwarf shoot

Long shoot

Questions 15 of 50

Question:In the embryo of Pinus rosette cells lie

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Above suspensor cells

Between suspensor and embryonal cells

Between primary and secondary suspensor cells

Between embryonal and apical cells

Questions 16 of 50

Question:Resin and turpentine are obtained from

Answers Choices:

Cycas

Pinus

Abies

Cedrus

Questions 17 of 50

Question:Which of the following is the best explanation for the excurrent (pyramidal) shape of Pinus (the branches giving the plant the appearance of a tall cone)

Answers Choices:

Correction among adjoining trees for sunlight

The effect of auxins on growth of stem tips

Adaptation for wind pollination

Efficiency of water transport from ground to leaves

Questions 18 of 50

Question:The gametophytes of Pinus axe protected from dessication by living in

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Moist soil

Moist tissue of sporophyte in the cone

Bogs and marshes

The rainy season only

Questions 19 of 50

Question:In Pinus, the terminal portion of microsporophyll of male cone is called

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Embryo sac

Bract scale

Ovule

Apophysis

Questions 20 of 50

Question:The edible part of seed of Pinus is

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Epispore

Endosperm

Perisperm

Pericarp

Questions 21 of 50

Question:Microsporophyll of Pinus is equivalent to

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Pollen grain of angiosperms

Stamen

Male gametophyte

Inflorescence

Questions 22 of 50

Question:The megasporophyll of Pinus consists of

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Both bract and ovuliferous scales

Only bract scales

Only ovuliferous scales

None of the above

Questions 23 of 50

Question:Pinus shows

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Heterospory

Polyembryony

Homospory

One type of branching

Questions 24 of 50

Question:The part of the ovule in the Pinus which has megaspore mother cells dividing to form haploid megaspores is

Answers Choices:

Nucellus

Embryo

Gametangia

Gametophore

Questions 25 of 50

Question:The seed of Pinus represents

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One generation

Two generations

Three generations

Four generations

Questions 26 of 50

Question:The spur of Pinus occelsa is

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Unifoliar

Bifoliar

Trifoliar

Pentafoliar

Questions 27 of 50

Question:The winged pollen grain of Pinus sp. are produced in

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Pollen chamber

Anther

Tapetum

Microsporangium

Questions 28 of 50

Question:In Pinus female gametophyte develops only from

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Upper most haploid megaspore

The lower most haploid megaspore

Penultimate megaspore

The 3rd megaspore

Questions 29 of 50

Question:In Pinus only lower part of oospore is concerned with the development of embryo, such development is

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Meroblastic

Periblastic

Mesoblastic

None of these

Questions 30 of 50

Question:The pollination in Pinus is

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Entomophilous

Anemophilous

Hydrophilous

Malscophilous

Questions 31 of 50

Question:In Pinus male and female reproductive structures occur

Answers Choices:

On different branches of the same plant

On different plants

On same branch

None of these

Questions 32 of 50

Question:The seed of Pinus sp. Is

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Uneconomic and nonendospermic

Abaxial and rounded

Adaxial and endospermic

Hypogeal and monocotyledonous

Questions 33 of 50

Question:Megasporophylls are found in

Answers Choices:

Male Cycas

Female Cycas

Male Pinus

Both (1) and (3)

Questions 34 of 50

Question:Cycas leaflets are

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Sessile, straight, oval

Sessile, straight, linear-lanceolate

Sessile, straight, spiny

Sessile, smooth, twisted

Questions 35 of 50

Question:Cycas is aplant

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Unisexual

Bisexual

Hermaphrodite

Gynandrous

Questions 36 of 50

Question:Which one of the following is a living fossil

Answers Choices:

Saccharomyces

Spirogyra

Cycas

Moss

Questions 37 of 50

Question:Pollen grain of Cycas are shed at stage

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One – celled

Two – celled

Three – celled

Four - celled

Questions 38 of 50

Question:In Cycas, the endosperm is

Answers Choices:

Sporophytic structure

Gametophytic structure

New structure

Formed after fertilization

Questions 39 of 50

Question:Male gametes of cycads are

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Rounded and nonciliate

Sickle - shaped biflagellate

Boat - shaped nonciliate

Large, top-like, spirally twisted with cilia

Questions 40 of 50

Question:Coralloid roots of Cycas possess a symbiotic alga

Answers Choices:

Aulosira

Spirogyra

Ulothrix

Anabaena

Questions 41 of 50

Question:Ptyxis in Cycas is

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Simple

Circular

Circinate

None of these

Questions 42 of 50

Question:Inverted 'Omega' shaped arrangement of vascular bundles is found in

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Cycas leaflet

Cycas rachis

Cycas stem

Cycas root

Questions 43 of 50

Question:Transfusion tissue is found in

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Cycas leaf

Cycas leaflet

Cycas petiole

Cycas root

Questions 44 of 50

Question:The number of prothallial cells in male gametophyte of Cycas is

Answers Choices:

1

2

3

0

Questions 45 of 50

Question:Cycas ovule is

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Orthotropous and unitegmic

Orthotropous and bitegmic

Anatropous and unitegmic

None of these

Questions 46 of 50

Question:The secondary growth in stem of Cycas is brought about by

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Persistent cambium

Short lived cambium

Number of cambia produced in succession

Isolated strips of cambium

Questions 47 of 50

Question:Which species of Cycas is having largest male cones

Answers Choices:

Cycas revotuta

C. rumphii

C. circinalis

C. beddomei

Questions 48 of 50

Question:Male and female Cycas plants show which type of growth

Answers Choices:

Monopodial in both

Sympodial in both

Monopodial in male and sympodial in female plant

Sympodial in male and monopodial in female plant

Questions 49 of 50

Question:Negatively geotropic roots are found in

Answers Choices:

Colocasia

Cycas

Cactus

Coleus

Questions 50 of 50

Question:Cycas is living fossil as it has

Answers Choices:

Ciliated sperms

Structure like that of Tree Fern

Restricted occurrence in certain areas

Been found in fossil state also